bunnell



(No Model.) 3 Sheets-Sheet 1.

M. G. BU-NNELL. GRUSHING MACHINE.

Patented June 29, 1897.

M i w 3% I (No Model.) 3 Sheets-Sheet 2.

M. G. BUNNBLL.

GRUSHING MACHINE.

No. 585,182. Patented June 29, 1897.

(No Model.) 3 Sheets-Sheet 8.

M. G. BUNNELL. GRUSHING MACHINE.

' No. 585,182. Patented June 29, 1897.

fiya'f I 012314 Emu/n.1 a

[NITED STATES 'AENT Fr es.

MORTON G; BUNNELL, OF CHICAGO, ILLINOIS, ASSIGN OR TO FREDERICK O.

' AUSTIN, OF SAME PLACE.

CRUSHING-IVIACHINE.

SPECIFICATION forming part of Letters Patent N 0. 585,182, dated June29, 1897. Application filed October '7, 1895. Serial No. 564,834. (Nomodel.)

To all whom it may concern:

Be it known that I, MORTON G. BUNNELL, a citizen of the United States,residing at Ohicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Crushing-Machines,ofwhich the following is a specification.

Prominent objects of my invention are to provide an exceedingly simple,powerful, and rapidly-effective crushing-machine in which the stone orlike material on its way downwardly through the crushing-hopper shall besubjected to and crushed by a rapid succession of hammer-like blows,tending to crush it in what is known as cube form.

To the attainment of the foregoingand other useful ends my improvedmachine comprises a crushing-hopper having at one side a couple ofreciprocating crushing-jaws operating in relatively reverse directionsand connected with one another and controlled by a pivotally-supportedvibratory connection and operated by a vibrator which serves to thrustthe jaws forward in alternation. The back movement of one jaw isenforced by the forward movement of the other jaw as a result of thevibratory connection between the two. This vibratory connection ispivoted at a point between its connections with the jaws, whereby thejaws are guided and caused to have uniform relative movements inopposite directions. One jaw is arranged over the other, and hence thematerial while passing clownwardly through the hopper will be subjectedto a rapid succession of hammenblows.

In the accompanying drawings, Figure 1 is a top plan View of the greaterportion of a crushing-machine embodying my invention. Fig. 2 is alongitudinal section on line a: min Fig. 1. Fig. 3 is a section on liney y in Fig. 2, the balance-wheels being in elevation. Fig. a is asection on line 5 z in Fig. 2.

The main frame A of the machine may be of any suitable construction, andthe stationary jaw B can be either permanently fixed or arranged foradjustment in any ordinary or suitable way. The movable crushing meanscomprises acouple of independently-movable jaws O and 0, arranged oneover the other and operated by a vibrator D, which is pivoted at d. Thevibrator D is in the nature of a vibratory lever whereof its portions dd constitute the arms with which the arms or rear extensions 0 c of thejaws are connected. As a simple and desirable way of connecting the armsor extensions of the jaws with the lever the latter is provided withrounded sockets (Z and the arms or extensions 0 are provided withrounded bearing ends 0, which engage in said sockets, the practicalresult being hinge or pivotal connections between the jaws and vibrator,it being also obvious that the converse of such jointed connectionsbetween the jaws and vibrator could be employedthat is to say, thevibrator could have rounded or analogous bearing portions engaging insockets in the rear extensions of the jaws.

The rear portions or extensions of the jaws are respectively pivoted, asat c e, to the opposite end portions of a vibratory or swinging link orbar E, which forms a vibratory lever connection between the jaws andwhich is pivoted at a point between its connections with the jaws, as atc. The vibrator D can be actuated by any suitable means, a simpleconstruction of operating device being an cecentric F, arranged uponshaft G, which carries the balance-wheels II, and serving to operate apitman I, which is pivotally connected, as at '21, with the rear endportion of the vi brator, which latter extends back to some extent fromthe point at which it is pivotally supported or fulcrumed between thesides of the main frame.

The operation. of the vibrator causes the jaws to reciprocate inrelatively reverse directions, it being observed that when one jaw isthrust forward by the action of the vibrator the other jaw is drawnrearwardly by reason of the vibratory connection between the two jaws.The material between the stationary jaw and the movable crushing-jawswill be crushed by a succession of crushing impacts having the effect ofhammer-blows and will be crushed in what is commonly termed cube form.The actions of the movable crushing-jaws will also be practicallydirect, owing to the fact that the arcs described by the ends of thevibratory connection E, which maintains the jaws apart, will be slight.

IVhat I claim as my invention is 1. A crusher having a crushing-hoppercomprising upper and lower reciprocating jaws; a pivotally-supportcdswinging link pivotally connected to the jaws at points which aresituated to the rear of the'crushing-faces of the latter and on oppositesides of the point of support of the link; and means for reciprocatingthe jaws in alternation, and for vibrating the same about their pointsof connection with the link during reciprocation, as set forth.

2. In a crushing-maehine, the combination, with the upper and lowerreciprocating jaws, of a pivotally-supported swinging link pivotallyconnected with the jaws at opposite sides of its point of support,whereby the link serves as a support for the jaws and also insures theirreciprocation in alternation as set forth.

A crushing-machine having a crushinghopper comprising upper and lowermovable jaws; a pivotally-supported swinging link to which the jaws arepivotally connected at points on opposite sides of the pivotal support;a vibrator having a jointed connection at one end with thecrushing-jaws; and a pitman connected with the opposite end of thevibrator, substantially as described.

MORTON G. BUNNELL.

\Vitnesses:

ARTHUR F. DURANID, MARGARET M. WAGNER.

